Front bumper



FIG. 1 is a front and left-side perspective view of the front bumper of the present invention showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate environmental structure for the front bumper that forms no part of the claimed design. 

CLAIM The ornamental design for a front bumper, as shown and described. 